Home / 93,431.20-140,146.80-31,101.70

Finding the Fourth Proportional to 93,431.20, 140,146.80 and 31,101.70

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Solution

The fourth proportional to 93,431.20, 140,146.80 and 31,101.70 is: 46,652.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,431.20 : 140,146.80 = 31,101.70 : x
  2. Step 2: Convert to fraction form
    93,431.20/140,146.80 = 31,101.70/x
  3. Step 3: Cross multiply
    93,431.20x = 140,146.80 × 31,101.70
  4. Step 4: Simplify right side
    93,431.20x = 4,358,803,729.56
  5. Step 5: Solve for x
    x = 4,358,803,729.56/93,431.20
  6. Step 6: Final answer
    x = 46,652.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.